CN2680927Y - After-damping-changed shock reducer - Google Patents
After-damping-changed shock reducer Download PDFInfo
- Publication number
- CN2680927Y CN2680927Y CN 200320123683 CN200320123683U CN2680927Y CN 2680927 Y CN2680927 Y CN 2680927Y CN 200320123683 CN200320123683 CN 200320123683 CN 200320123683 U CN200320123683 U CN 200320123683U CN 2680927 Y CN2680927 Y CN 2680927Y
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- damping
- seat
- oil
- piston
- compression
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Abstract
The utility model provides an after-damping-changed shock reducer, comprising a lower connector, a buffer, a damping spring, a spring seat, a damping device and an upper connector. The damping device comprises a piston-rod, an oil cylinder, a guiding package, a buffer spring and a piston assembly; a compressing damping oil channel and a restored damping oil channel are arranged on the piston; the piston and a damping core housing are respectively connected with the both sides of a valve seat; an oil hole on the damping core housing is communicated with an oil hole on the valve seat; a compressing damping valve sheet controlling the compressing damping oil channel and a restored damping valve sheet controlling the restored damping oil channel are arranged between the piston and the valve seat. The damping seat on the upper connector has a damping shaft which can extend into the cavity of the oil cylinder. When compressed, the damping shaft extends into the oil hole of the damping core housing and the hole of the piston-rod. Through reducing the oil flow quantity of the unit section, a variable compressing damping can be formed until the compression damping reaches the maximum. The using life and the comfort of riding can be improved obviously through the variable compression damping to prevent the shock reducer from impacting with bottom when the motorcycle is with heavy-load or is impacted strongly.
Description
Technical field
The utility model relates to a kind of vibration damper of Motor Vehicle, especially relates to a kind of change damping rear shock absorber of motorcycle.
Background technique
Motorcycle when trailing wheel runs into the obstacle impact, absorbs and the attenuate shock vibrations by rear shock absorber, to improve comfort of drivers and passengers in the process of moving.Hydraulic damper behind the tradition motorcycle is decay a impact endurance test shock in the vehicle driving process of resistance that elastic buffer and oil cylinder inner fluid by damping spring are produced.This traditional hydraulic damper, on the one hand vibration damper easily causes vibration damper to hit the end in heavy duty or when being subjected to outside intense impact, the travelling comfort driven of influence not only, but also easily vibration damper is caused damage.On the other hand, because of in-oil cylinder fluid and gas for loading in mixture, can produce the emulsion of fluid in the using process, therefore seriously influenced the service behaviour of vibration damper.Be to solve the emulsion of vibration damper fluid, present a kind of rear shock absorber is that the air bag by independent closed solves the problem that oil gas loads in mixture, to improve the service behaviour of vibration damper.But this vibration damper still can't solve in heavy duty or when being subjected to outside intense impact, causes vibration damper to hit the phenomenon at the end.
Goal of the invention
The utility model is to overcome above-mentioned deficiency, a kind of change damping rear shock absorber is provided, when motorcycle is in heavy duty or be subjected to outside intense impact, prevent that by the compression damping that changes vibration damper from hitting the end, improve the travelling comfort of vibration damper working life and driving.
The technological scheme that the utility model will solve the problems of the technologies described above is: a kind of change damping rear shock absorber, comprise link down, cushion pad, damping spring, spring seat, damping device and upper connector, damping device is by piston rod, oil cylinder, by sealing cover, oil sealing, the guidance set that guide sleeve constitutes, damping spring and by piston, the piston assembly that valve seat and compression damping valve block constitute, described piston is provided with the compression damping oil duct and restores damping flow channel, piston and damping core retainer plate are connected to the both sides of valve seat, the oilhole of damping core retainer plate communicates with oilhole on the valve seat, be provided with the compression damping valve block of control compression damping oil duct between piston and the valve seat, also be provided with the recovery damper valve plate that damping flow channel is restored in control between piston and the valve seat; Upper connector also has the damping seat, the damping seat has the damping axle that extends in the oil cylinder cavity, damping shaft extension during compression is to the oilhole and piston rod hole of damping core retainer plate, reduce the oilhole of damping core retainer plate and the flow of piston rod hole unit cross-sectional area liquid oil, form the compression damping that changes, until the compression damping maximum.
Working principle of the present utility model is: when vibration damper is subjected to outside intense impact or heavy duty, the compression shock absorption spring, piston rod drive piston assembly to the upper connector axis of orientation to moving, fluid in the upper oil cavitie is washed the compression damping valve block open by the compression damping oil duct on the valve seat and is entered lower oil cavitie, produces a spot of compression damping decay; When valve seat when the upper connector, then the damping axle on the damping seat works, the damping axle inserts in the oilhole of damping core retainer plate, in moving axially process, make fluid pass through the runner of a variable cross section earlier, thereby form the compression damping of a variation, when the runner between damping axle and the damping core retainer plate reaches minimum clearance, make damping pressure reach maximum value gradually, prevent that effectively vibration damper from hitting the end.When restoring under the effect of piston rod at damping spring, the compression damping oil duct of compression damping valve block on closure piston under the fluid effect then, and the fluid in the lower oil cavitie is washed the recovery damper valve plate open, the slit that recovery compression damping oil duct by piston enters valve seat and oil cylinder inner wall enters upper oil cavitie, restores resistance and produce during the slit of fluid by valve seat and oil cylinder.
The utility model is owing to adopt technique scheme, therefore when motorcycle is in varying load or heavy condition and travel on rugged road, under the resistance to compression pression of the variation that the elastic buffer and the oil cylinder inner fluid of damping spring produced, make vibration damper realize becoming damping shock absorption, can prevent effectively that rear shock absorber is being subjected to bump end phenomenon after heavy duty or the outside intense impact, delayed the working life of vibration damper, not only obviously improved the damping performance of motorcycle, and obviously improved comfort of drivers and passengers, also improved the smoothness of motorcycle driving simultaneously.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 becomes one of structural representation of damping rear shock absorber for the utility model.
Fig. 2 is the I place structure for amplifying schematic representation of Fig. 1.
Fig. 3 become for the utility model the damping rear shock absorber structural representation two.
Embodiment
See change damping rear shock absorber of the present utility model shown in Figure 1, comprise link 1, cushion pad 3, damping spring 2, spring seat 18, damping device and upper connector 17 down.See shown in Fig. 1,2 that damping device is made of piston rod 4, oil cylinder 15, guidance set, damping spring 9, spring seat 18 and piston assembly.Guidance set is made of sealing cover 5, oil sealing 6 and guide sleeve 7, and sealing cover 5 is fixed on a side of oil cylinder 15 and by outside framework oil seal 6 sealings, is sleeved on guide sleeve 7 and oil cylinder 15 clampings on the piston rod 4, makes piston rod 4 axial motion in guide sleeve 7.For improving guide sleeve 7 wear resistancies and preventing leakage of oil, in guide sleeve 7, also be contained in a composite bush 8, composite bush 8 is made of from inside to outside polytetrafluoroethylene floor, glass fibre layer, metal frame layer and copper sheathing layer successively, and composite bush 8 is fitted in the guide sleeve 7.See shown in Figure 2, piston assembly is by valve seat 13, piston 10 and compression damping valve block 12, valve block spring 11 and recovery damper valve plate 22 constitute, be provided with damping spring 9 between guide sleeve 7 and the piston 10, piston 10 is provided with compression damping oil duct 10-1 and restores damping flow channel 10-2, the position of compression damping oil duct 10-1 and recovery damping flow channel 10-2 can be provided with as required, piston 10 is connected on the valve seat 13, opposite side at valve seat 13 also is equipped with damping core retainer plate 14, the oilhole of damping core retainer plate 14 communicates with oilhole on the valve seat 13, be provided with the compression damping valve block 12 of control compression damping oil duct 10-1 between piston 10 and the valve seat 13, compression damping valve block 12 1 sides are provided with valve block spring 11,13 of piston 10 and valve seats also are provided with the recovery damper valve plate 22 that damping flow channel 10-2 is restored in control, restore damper valve plate 22 1 sides and have projection supporting, this projection can adopt packing ring, or be set directly on the valve seat 13, also can adopt shell fragment to withstand on a side of restoring damper valve plate 22.Damping seat 16 on the upper connector 17 has the damping axle 16-1 that extends in the oil cylinder 15, the length of damping axle 16-1 is between 5mm～45mm, and damping core retainer plate 14 has the oilhole that matches with damping axle 16-1, this damping seat 16 can be made integrative-structure with upper connector 17, or be illustrated in figure 1 as the branch body structure, damping seat 16 is connected on the upper connector 17, and damping seat 16 wraps in oil cylinder 15 outsides and is tightly connected.When vibration damper compression shock absorption spring 2, and when making damping axle 16-1 enter damping core retainer plate 14, because the variation of anterior oil duct sectional area, and the flow of minimizing unit cross-sectional area fluid, form the resistance to compression pression that changes, when damping axle 16 goed deep into damping core retainer plate 14, it is minimum that the runner between damping axle 16-1 and the damping core retainer plate 14 reaches, make damping pressure reach maximum value gradually, form the compression damping motion of a variation.See shown in Fig. 1,2 that the utility model preferably its front portion of damping axle 16-1 of damping seat 16 is the awl column and matches with the oilhole of damping core retainer plate 14, forms a comparatively compression damping of moderate change.The damping axle 16-1 that can also be damping seat 16 is a vertical cyclindrical shape, and matches with the reamer hole of damping core retainer plate 14 oilholes, also can form the compression damping of a moderate change, along with the stroke of damping axle 16-1 increases, until the maximum value of compression damping.
Therefore damping changing impact damper of the present utility model is when being subjected to external force intense impact or heavy duty, compression shock absorption spring 2, restore the recovery damping flow channel 10-2 on damper valve plate 22 closure pistons 10, fluid in the upper oil cavitie is by the compression damping oil duct 10-1 of piston 10, enter lower oil cavitie, when damping axle 16-1 enters damping core retainer plate 14, form the compression damping of a variation, arrive maximum up to compression damping.In the vibration damper recuperation, compression damping valve block 12 closure pistons 10 compression damping oil duct 10-1 then, restoring damper valve plate 22 opens, fluid in the lower oil cavitie is entered in the upper oil cavitie from restoring damping oil duct 10-2, valve seat 13 peripheries and oil cylinder 15 inwalls, form when making fluid pass through valve seat 13 peripheries and restore damping with oil cylinder 15 inwalls.
Seeing shown in Figure 3ly, is the another kind of structure that becomes the damping rear shock absorber of the present utility model, and not existing together with said structure is to have set up airbag structure, makes in-oil cylinder fluid realize Oil-gas Separation, to prevent fluid emulsification and to reduce damping force.On upper connector 17, also be provided with oil pocket 17-1, be provided with independent sealed air bag 19 in the oil pocket 17-1, air bag 19 is fixed on the air bag seat 23, and air bag seat 23 is equipped with inflation spool 21, be convenient to fast aeration, seal closure 21 also is equipped with in the oil pocket 17-1 exterior edge face of upper connector 17, and damping seat 16 is provided with oilhole 16-2, and the oil pocket 17-1 on the upper connector 17 communicates with oil cylinder 15 by the oilhole 6-2 on oil duct 17-2 and the damping seat 16.When vibration damper compressed, the fluid in the upper oil cavitie entered the oil pocket 17-1 compressing gasbag of upper connector 17 by damping seat 16 upper oil hole 16-2; During recovery, then fluid enters upper oil cavitie from the oil pocket 17-1 of upper connector 17 by oil duct 17-2 and damping seat 16, stretch in the oil pocket institute's volume of increasing and reducing to remedy piston rod 4, thereby make in-oil cylinder fluid reach the purpose of Oil-gas Separation, prevent fluid emulsification.
For making vibration damper have stability preferably, the internal diameter of oil cylinder 15 of the present utility model is arranged on 22mm～38mm, and the internal diameter of its oil cylinder 15 adopts the large tank series of 22mm, 28mm, 30mm, 35mm, 38mm.
Claims (9)
1, a kind of change damping rear shock absorber, comprise link (1), cushion pad (3), damping spring (2), spring seat (18), damping device and upper connector (17) down, damping device is by piston rod (4), oil cylinder (15), guidance set by sealing cover (5), oil sealing (6), guide sleeve (7) formation, damping spring (9) and the piston assembly that is made of piston (10) valve seat (13) and compression damping valve block (12) is characterized in that:
A, described piston (10) are provided with compression damping oil duct (10-1) and restore damping flow channel (10-2), piston (10) and damping core retainer plate (14) are connected to the both sides of valve seat (13), the oilhole of damping core retainer plate (14) communicates with oilhole on the valve seat (13), be provided with the compression damping valve block (12) of control compression damping oil duct (10-1) between piston (10) and the valve seat (13), also be provided with the recovery damper valve plate (22) that damping flow channel (10-2) is restored in control between piston (10) and the valve seat (13);
B, upper connector (17) also have damping seat (16), damping seat (16) has the damping axle (16-1) that extends in oil cylinder (15) cavity, damping axle (16-1) during compression extends in the hole of the oilhole of damping core retainer plate (14) and piston rod (4), reduce the flow of unit cross-sectional area liquid oil, form the compression damping that changes, arrive maximum until compression damping.
2, change damping rear shock absorber according to claim 1, it is characterized in that: described damping seat (16) is connected on the upper connector (17), and damping seat (16) is tightly connected with oil cylinder (15).
3, change damping rear shock absorber according to claim 1 and 2 is characterized in that: its front portion of damping axle (16-1) of described damping seat (16) is the awl column and matches with the oilhole of damping core retainer plate (14), forms the compression damping of moderate change.
4, change damping rear shock absorber according to claim 1 and 2 is characterized in that: the damping axle (16-1) of described damping seat (16) is a vertical cyclindrical shape, and matches with the reamer hole of damping core retainer plate (14) oilhole, forms the compression damping of moderate change.
5, according to the described change damping of one of claim 1 to 4 rear shock absorber, it is characterized in that: the length of the damping axle (16-1) of described damping seat (16) is between 5mm～45mm.
6, change damping rear shock absorber according to claim 1, it is characterized in that: the internal diameter of described oil cylinder (15) is between 22mm～38mm.
7, change damping rear shock absorber according to claim 1, it is characterized in that: wear-resisting composite bush (8) is housed in the described guide sleeve (7), and composite bush (8) is made of from inside to outside polytetrafluoroethylene floor, glass fibre layer, metal frame layer and copper sheathing layer successively.
8, change damping rear shock absorber according to claim 1, it is characterized in that: described upper connector (17) also is provided with oil pocket (17-1), and be provided with independent sealed air bag (19) in the oil pocket (17-1), seal closure (21) is connected oil pocket (17-1) side of upper connector (17), damping seat (16) is provided with oilhole (16-2), and the oil pocket (17-1) on the upper connector (17) communicates with oil cylinder (15) by the oilhole (16-2) of oil duct (17-2) and damping seat (16).
9, change damping rear shock absorber according to claim 8, it is characterized in that: described air bag (19) is fixed on the air bag seat (23), and air bag seat (23) is equipped with inflation spool (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320123683 CN2680927Y (en) | 2003-12-29 | 2003-12-29 | After-damping-changed shock reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320123683 CN2680927Y (en) | 2003-12-29 | 2003-12-29 | After-damping-changed shock reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2680927Y true CN2680927Y (en) | 2005-02-23 |
Family
ID=34599820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320123683 Expired - Fee Related CN2680927Y (en) | 2003-12-29 | 2003-12-29 | After-damping-changed shock reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2680927Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328520C (en) * | 2005-03-30 | 2007-07-25 | 浙江大学 | Double action single degree of freedom hydraulic buffer |
| CN100460706C (en) * | 2006-04-29 | 2009-02-11 | 杨德君 | Intelligent gas spring |
| CN102720795A (en) * | 2012-06-12 | 2012-10-10 | 江苏科技大学 | Hydro-pneumatic spring for amphibious vehicles and hydraulic regulating device for hydro-pneumatic spring for amphibious vehicle |
| CN104100666A (en) * | 2014-08-01 | 2014-10-15 | 朱德仲 | Auxiliary spring used for hydraulic ejector rod |
| CN105298975A (en) * | 2015-10-12 | 2016-02-03 | 江苏恒立高压油缸股份有限公司 | Pillared shoe cylinder |
| CN106402244A (en) * | 2015-07-31 | 2017-02-15 | 张宏如 | Internally-controlled variable damping hydro-pneumatic suspension cylinder |
| CN107271087A (en) * | 2017-06-12 | 2017-10-20 | 常州朗锐凯迩必减振技术有限公司 | A kind of oil-pressure damper tap pressure test equipment and method of testing |
| CN114802573A (en) * | 2022-03-23 | 2022-07-29 | 宗申·比亚乔佛山摩托车企业有限公司 | Motorcycle front wheel steering damping device |
-
2003
- 2003-12-29 CN CN 200320123683 patent/CN2680927Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328520C (en) * | 2005-03-30 | 2007-07-25 | 浙江大学 | Double action single degree of freedom hydraulic buffer |
| CN100460706C (en) * | 2006-04-29 | 2009-02-11 | 杨德君 | Intelligent gas spring |
| CN102720795A (en) * | 2012-06-12 | 2012-10-10 | 江苏科技大学 | Hydro-pneumatic spring for amphibious vehicles and hydraulic regulating device for hydro-pneumatic spring for amphibious vehicle |
| CN104100666A (en) * | 2014-08-01 | 2014-10-15 | 朱德仲 | Auxiliary spring used for hydraulic ejector rod |
| CN106402244A (en) * | 2015-07-31 | 2017-02-15 | 张宏如 | Internally-controlled variable damping hydro-pneumatic suspension cylinder |
| CN105298975A (en) * | 2015-10-12 | 2016-02-03 | 江苏恒立高压油缸股份有限公司 | Pillared shoe cylinder |
| CN107271087A (en) * | 2017-06-12 | 2017-10-20 | 常州朗锐凯迩必减振技术有限公司 | A kind of oil-pressure damper tap pressure test equipment and method of testing |
| CN107271087B (en) * | 2017-06-12 | 2019-10-25 | 常州中车柴油机零部件有限公司 | A kind of oil-pressure damper tap pressure test equipment and test method |
| CN114802573A (en) * | 2022-03-23 | 2022-07-29 | 宗申·比亚乔佛山摩托车企业有限公司 | Motorcycle front wheel steering damping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |